Perhaps it is used for reaming out or enlarging existing holes to a larger size. Kind of like a gimlet, except the smaller hole has already been drilled. The grinding of the metal blade reminds me of a spoon bit used in an old brace to drill holes. I just can’t see one drilling a hole with what appears to originally be an old screwdriver. Seems to be a homemade tool for a very specific task.

“Indestro” is a very common tool manufacturer. I’ve had several Indestro wrenches and sockets over the years, both for home use and at work. Maybe somebody can track down that patent number, though I suspect this handle was removed from the original tool (socket chisel, maybe?) and adapted to that gouge. Kinda looks like that carving tool that is used for carving bird’s eyes details. Good luck!

-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!

Here are a couple more pics as I’m realizing the one I provided wasn’t accurate enough. Any clues? I’m thinking it used to have a metal socket that might have went around the wood at some point. But the shape of the tip looks like something specific. Just can’t figure it out. I was thinking there would surely be someone out there that has seen this exact thing and know. Christef – What’s a knibbler pin?